/*
 * jQuery UI Resizable 1.6
 *
 * Copyright (c) 2008 AUTHORS.txt (http://ui.jquery.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Resizables
 *
 * Depends:
 *	ui.core.js
 */
(function($) {

    $.widget("ui.resizable", $.extend({}, $.ui.mouse, {
        _init: function() {

            var self = this, o = this.options;

            var elpos = this.element.css('position');

            this.originalElement = this.element;

            // simulate .ui-resizable { position: relative; }
            this.element.addClass("ui-resizable").css({position: /static/.test(elpos) ? 'relative' : elpos});

            $.extend(o, {
                _aspectRatio: !!(o.aspectRatio),
                helper: o.helper || o.ghost || o.animate ? o.helper || 'ui-resizable-helper' : null,
                knobHandles: o.knobHandles === true ? 'ui-resizable-knob-handle' : o.knobHandles
            });

            //Default Theme
            var aBorder = '1px solid #DEDEDE';

            o.defaultTheme = {
                'ui-resizable': {display: 'block'},
                'ui-resizable-handle': {position: 'absolute', background: '#F2F2F2', fontSize: '0.1px'},
                'ui-resizable-n': {cursor: 'n-resize', height: '4px', left: '0px', right: '0px', borderTop: aBorder},
                'ui-resizable-s': {cursor: 's-resize', height: '4px', left: '0px', right: '0px', borderBottom: aBorder},
                'ui-resizable-e': {cursor: 'e-resize', width: '4px', top: '0px', bottom: '0px', borderRight: aBorder},
                'ui-resizable-w': {cursor: 'w-resize', width: '4px', top: '0px', bottom: '0px', borderLeft: aBorder},
                'ui-resizable-se': {cursor: 'se-resize', width: '4px', height: '4px', borderRight: aBorder, borderBottom: aBorder},
                'ui-resizable-sw': {cursor: 'sw-resize', width: '4px', height: '4px', borderBottom: aBorder, borderLeft: aBorder},
                'ui-resizable-ne': {cursor: 'ne-resize', width: '4px', height: '4px', borderRight: aBorder, borderTop: aBorder},
                'ui-resizable-nw': {cursor: 'nw-resize', width: '4px', height: '4px', borderLeft: aBorder, borderTop: aBorder}
            };

            o.knobTheme = {
                'ui-resizable-handle': {background: '#F2F2F2', border: '1px solid #808080', height: '8px', width: '8px'},
                'ui-resizable-n': {cursor: 'n-resize', top: '0px', left: '45%'},
                'ui-resizable-s': {cursor: 's-resize', bottom: '0px', left: '45%'},
                'ui-resizable-e': {cursor: 'e-resize', right: '0px', top: '45%'},
                'ui-resizable-w': {cursor: 'w-resize', left: '0px', top: '45%'},
                'ui-resizable-se': {cursor: 'se-resize', right: '0px', bottom: '0px'},
                'ui-resizable-sw': {cursor: 'sw-resize', left: '0px', bottom: '0px'},
                'ui-resizable-nw': {cursor: 'nw-resize', left: '0px', top: '0px'},
                'ui-resizable-ne': {cursor: 'ne-resize', right: '0px', top: '0px'}
            };

            o._nodeName = this.element[0].nodeName;

            //Wrap the element if it cannot hold child nodes
            if (o._nodeName.match(/canvas|textarea|input|select|button|img/i)) {
                var el = this.element;

                //Opera fixing relative position
                if (/relative/.test(el.css('position')) && $.browser.opera)
                    el.css({position: 'relative', top: 'auto', left: 'auto'});

                //Create a wrapper element and set the wrapper to the new current internal element
                el.wrap(
                        $('<div class="ui-wrapper"	style="overflow: hidden;"></div>').css({
                    position: el.css('position'),
                    width: el.outerWidth(),
                    height: el.outerHeight(),
                    top: el.css('top'),
                    left: el.css('left')
                })
                        );

                var oel = this.element;
                this.element = this.element.parent();

                // store instance on wrapper
                this.element.data('resizable', this);

                //Move margins to the wrapper
                this.element.css({marginLeft: oel.css("marginLeft"), marginTop: oel.css("marginTop"),
                    marginRight: oel.css("marginRight"), marginBottom: oel.css("marginBottom")
                });

                oel.css({marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});

                //Prevent Safari textarea resize
                if ($.browser.safari && o.preventDefault)
                    oel.css('resize', 'none');

                o.proportionallyResize = oel.css({position: 'static', zoom: 1, display: 'block'});

                // avoid IE jump
                this.element.css({margin: oel.css('margin')});

                // fix handlers offset
                this._proportionallyResize();
            }

            if (!o.handles)
                o.handles = !$('.ui-resizable-handle', this.element).length ? "e,s,se" : {n: '.ui-resizable-n', e: '.ui-resizable-e', s: '.ui-resizable-s', w: '.ui-resizable-w', se: '.ui-resizable-se', sw: '.ui-resizable-sw', ne: '.ui-resizable-ne', nw: '.ui-resizable-nw'};
            if (o.handles.constructor == String) {

                o.zIndex = o.zIndex || 1000;

                if (o.handles == 'all')
                    o.handles = 'n,e,s,w,se,sw,ne,nw';

                var n = o.handles.split(",");
                o.handles = {};

                // insertions are applied when don't have theme loaded
                var insertionsDefault = {
                    handle: 'position: absolute; display: none; overflow:hidden;',
                    n: 'top: 0pt; width:100%;',
                    e: 'right: 0pt; height:100%;',
                    s: 'bottom: 0pt; width:100%;',
                    w: 'left: 0pt; height:100%;',
                    se: 'bottom: 0pt; right: 0px;',
                    sw: 'bottom: 0pt; left: 0px;',
                    ne: 'top: 0pt; right: 0px;',
                    nw: 'top: 0pt; left: 0px;'
                };

                for (var i = 0; i < n.length; i++) {
                    var handle = $.trim(n[i]), dt = o.defaultTheme, hname = 'ui-resizable-' + handle, loadDefault = !$.ui.css(hname) && !o.knobHandles, userKnobClass = $.ui.css('ui-resizable-knob-handle'),
                            allDefTheme = $.extend(dt[hname], dt['ui-resizable-handle']), allKnobTheme = $.extend(o.knobTheme[hname], !userKnobClass ? o.knobTheme['ui-resizable-handle'] : {});

                    // increase zIndex of sw, se, ne, nw axis
                    var applyZIndex = /sw|se|ne|nw/.test(handle) ? {zIndex: ++o.zIndex} : {};

                    var defCss = (loadDefault ? insertionsDefault[handle] : ''),
                            axis = $(['<div class="ui-resizable-handle ', hname, '" style="', defCss, insertionsDefault.handle, '"></div>'].join('')).css(applyZIndex);
                    o.handles[handle] = '.ui-resizable-' + handle;

                    this.element.append(
                            //Theme detection, if not loaded, load o.defaultTheme
                            axis.css(loadDefault ? allDefTheme : {})
                            // Load the knobHandle css, fix width, height, top, left...
                            .css(o.knobHandles ? allKnobTheme : {}).addClass(o.knobHandles ? 'ui-resizable-knob-handle' : '').addClass(o.knobHandles)
                            );
                }

                if (o.knobHandles)
                    this.element.addClass('ui-resizable-knob').css(!$.ui.css('ui-resizable-knob') ? { /*border: '1px #fff dashed'*/} : {});
            }

            this._renderAxis = function(target) {
                target = target || this.element;

                for (var i in o.handles) {
                    if (o.handles[i].constructor == String)
                        o.handles[i] = $(o.handles[i], this.element).show();

                    if (o.transparent)
                        o.handles[i].css({opacity: 0});

                    //Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
                    if (this.element.is('.ui-wrapper') &&
                            o._nodeName.match(/textarea|input|select|button/i)) {

                        var axis = $(o.handles[i], this.element), padWrapper = 0;

                        //Checking the correct pad and border
                        padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();

                        //The padding type i have to apply...
                        var padPos = ['padding',
                            /ne|nw|n/.test(i) ? 'Top' :
                                    /se|sw|s/.test(i) ? 'Bottom' :
                                    /^e$/.test(i) ? 'Right' : 'Left'].join("");

                        if (!o.transparent)
                            target.css(padPos, padWrapper);

                        this._proportionallyResize();
                    }
                    if (!$(o.handles[i]).length)
                        continue;
                }
            };

            this._renderAxis(this.element);
            o._handles = $('.ui-resizable-handle', self.element);

            if (o.disableSelection)
                o._handles.disableSelection();

            //Matching axis name
            o._handles.mouseover(function() {
                if (!o.resizing) {
                    if (this.className)
                        var axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);
                    //Axis, default = se
                    self.axis = o.axis = axis && axis[1] ? axis[1] : 'se';
                }
            });

            //If we want to auto hide the elements
            if (o.autoHide) {
                o._handles.hide();
                $(self.element).addClass("ui-resizable-autohide").hover(function() {
                    $(this).removeClass("ui-resizable-autohide");
                    o._handles.show();
                },
                        function() {
                            if (!o.resizing) {
                                $(this).addClass("ui-resizable-autohide");
                                o._handles.hide();
                            }
                        });
            }

            this._mouseInit();
        },
        destroy: function() {
            var el = this.element, wrapped = el.children(".ui-resizable").get(0);

            this._mouseDestroy();

            var _destroy = function(exp) {
                $(exp).removeClass("ui-resizable ui-resizable-disabled")
                        .removeData("resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
            };

            _destroy(el);

            if (el.is('.ui-wrapper') && wrapped) {
                el.parent().append(
                        $(wrapped).css({
                    position: el.css('position'),
                    width: el.outerWidth(),
                    height: el.outerHeight(),
                    top: el.css('top'),
                    left: el.css('left')
                })
                        ).end().remove();

                _destroy(wrapped);
            }
        },
        _mouseCapture: function(event) {

            if (this.options.disabled)
                return false;

            var handle = false;
            for (var i in this.options.handles) {
                if ($(this.options.handles[i])[0] == event.target)
                    handle = true;
            }
            if (!handle)
                return false;

            return true;

        },
        _mouseStart: function(event) {

            var o = this.options, iniPos = this.element.position(), el = this.element,
                    ie6 = $.browser.msie && $.browser.version < 7;
            o.resizing = true;
            o.documentScroll = {top: $(document).scrollTop(), left: $(document).scrollLeft()};

            // bugfix #1749
            if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {

                // sOffset decides if document scrollOffset will be added to the top/left of the resizable element
                var sOffset = $.browser.msie && !o.containment && (/absolute/).test(el.css('position')) && !(/relative/).test(el.parent().css('position'));
                var dscrollt = sOffset ? this.documentScroll.top : 0, dscrolll = sOffset ? this.documentScroll.left : 0;

                el.css({position: 'absolute', top: (iniPos.top + dscrollt), left: (iniPos.left + dscrolll)});
            }

            //Opera fixing relative position
            if ($.browser.opera && (/relative/).test(el.css('position')))
                el.css({position: 'relative', top: 'auto', left: 'auto'});

            this._renderProxy();

            var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));

            if (o.containment) {
                curleft += $(o.containment).scrollLeft() || 0;
                curtop += $(o.containment).scrollTop() || 0;
            }

            //Store needed variables
            this.offset = this.helper.offset();
            this.position = {left: curleft, top: curtop};
            this.size = o.helper || ie6 ? {width: el.outerWidth(), height: el.outerHeight()} : {width: el.width(), height: el.height()};
            this.originalSize = o.helper || ie6 ? {width: el.outerWidth(), height: el.outerHeight()} : {width: el.width(), height: el.height()};
            this.originalPosition = {left: curleft, top: curtop};
            this.sizeDiff = {width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height()};
            this.originalMousePosition = {left: event.pageX, top: event.pageY};

            //Aspect Ratio
            o.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1);

            if (o.preserveCursor) {
                var cursor = $('.ui-resizable-' + this.axis).css('cursor');
                $('body').css('cursor', cursor == 'auto' ? this.axis + '-resize' : cursor);
            }

            this._propagate("start", event);
            return true;
        },
        _mouseDrag: function(event) {

            //Increase performance, avoid regex
            var el = this.helper, o = this.options, props = {},
                    self = this, smp = this.originalMousePosition, a = this.axis;

            var dx = (event.pageX - smp.left) || 0, dy = (event.pageY - smp.top) || 0;
            var trigger = this._change[a];
            if (!trigger)
                return false;

            // Calculate the attrs that will be change
            var data = trigger.apply(this, [event, dx, dy]), ie6 = $.browser.msie && $.browser.version < 7, csdif = this.sizeDiff;

            if (o._aspectRatio || event.shiftKey)
                data = this._updateRatio(data, event);

            data = this._respectSize(data, event);

            // plugins callbacks need to be called first
            this._propagate("resize", event);

            el.css({
                top: this.position.top + "px", left: this.position.left + "px",
                width: this.size.width + "px", height: this.size.height + "px"
            });

            if (!o.helper && o.proportionallyResize)
                this._proportionallyResize();

            this._updateCache(data);

            // calling the user callback at the end
            this.element.triggerHandler("resize", [event, this.ui()], this.options["resize"]);

            return false;
        },
        _mouseStop: function(event) {

            this.options.resizing = false;
            var o = this.options, self = this;

            if (o.helper) {
                var pr = o.proportionallyResize, ista = pr && (/textarea/i).test(pr.get(0).nodeName),
                        soffseth = ista && $.ui.hasScroll(pr.get(0), 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
                        soffsetw = ista ? 0 : self.sizeDiff.width;

                var s = {width: (self.size.width - soffsetw), height: (self.size.height - soffseth)},
                left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,
                        top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;

                if (!o.animate)
                    this.element.css($.extend(s, {top: top, left: left}));

                if (o.helper && !o.animate)
                    this._proportionallyResize();
            }

            if (o.preserveCursor)
                $('body').css('cursor', 'auto');

            this._propagate("stop", event);

            if (o.helper)
                this.helper.remove();

            return false;
        },
        _updateCache: function(data) {
            var o = this.options;
            this.offset = this.helper.offset();
            if (data.left)
                this.position.left = data.left;
            if (data.top)
                this.position.top = data.top;
            if (data.height)
                this.size.height = data.height;
            if (data.width)
                this.size.width = data.width;
        },
        _updateRatio: function(data, event) {

            var o = this.options, cpos = this.position, csize = this.size, a = this.axis;

            if (data.height)
                data.width = (csize.height * o.aspectRatio);
            else if (data.width)
                data.height = (csize.width / o.aspectRatio);

            if (a == 'sw') {
                data.left = cpos.left + (csize.width - data.width);
                data.top = null;
            }
            if (a == 'nw') {
                data.top = cpos.top + (csize.height - data.height);
                data.left = cpos.left + (csize.width - data.width);
            }

            return data;
        },
        _respectSize: function(data, event) {

            var el = this.helper, o = this.options, pRatio = o._aspectRatio || event.shiftKey, a = this.axis,
                    ismaxw = data.width && o.maxWidth && o.maxWidth < data.width, ismaxh = data.height && o.maxHeight && o.maxHeight < data.height,
                    isminw = data.width && o.minWidth && o.minWidth > data.width, isminh = data.height && o.minHeight && o.minHeight > data.height;

            if (isminw)
                data.width = o.minWidth;
            if (isminh)
                data.height = o.minHeight;
            if (ismaxw)
                data.width = o.maxWidth;
            if (ismaxh)
                data.height = o.maxHeight;

            var dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height;
            var cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);

            if (isminw && cw)
                data.left = dw - o.minWidth;
            if (ismaxw && cw)
                data.left = dw - o.maxWidth;
            if (isminh && ch)
                data.top = dh - o.minHeight;
            if (ismaxh && ch)
                data.top = dh - o.maxHeight;

            // fixing jump error on top/left - bug #2330
            var isNotwh = !data.width && !data.height;
            if (isNotwh && !data.left && data.top)
                data.top = null;
            else if (isNotwh && !data.top && data.left)
                data.left = null;

            return data;
        },
        _proportionallyResize: function() {
            var o = this.options;
            if (!o.proportionallyResize)
                return;
            var prel = o.proportionallyResize, el = this.helper || this.element;

            if (!o.borderDif) {
                var b = [prel.css('borderTopWidth'), prel.css('borderRightWidth'), prel.css('borderBottomWidth'), prel.css('borderLeftWidth')],
                        p = [prel.css('paddingTop'), prel.css('paddingRight'), prel.css('paddingBottom'), prel.css('paddingLeft')];

                o.borderDif = $.map(b, function(v, i) {
                    var border = parseInt(v, 10) || 0, padding = parseInt(p[i], 10) || 0;
                    return border + padding;
                });
            }
            prel.css({
                height: (el.height() - o.borderDif[0] - o.borderDif[2]) + "px",
                width: (el.width() - o.borderDif[1] - o.borderDif[3]) + "px"
            });
        },
        _renderProxy: function() {
            var el = this.element, o = this.options;
            this.elementOffset = el.offset();

            if (o.helper) {
                this.helper = this.helper || $('<div style="overflow:hidden;"></div>');

                // fix ie6 offset
                var ie6 = $.browser.msie && $.browser.version < 7, ie6offset = (ie6 ? 1 : 0),
                        pxyoffset = (ie6 ? 2 : -1);

                this.helper.addClass(o.helper).css({
                    width: el.outerWidth() + pxyoffset,
                    height: el.outerHeight() + pxyoffset,
                    position: 'absolute',
                    left: this.elementOffset.left - ie6offset + 'px',
                    top: this.elementOffset.top - ie6offset + 'px',
                    zIndex: ++o.zIndex
                });

                this.helper.appendTo("body");

                if (o.disableSelection)
                    this.helper.disableSelection();

            } else {
                this.helper = el;
            }
        },
        _change: {
            e: function(event, dx, dy) {
                return {width: this.originalSize.width + dx};
            },
            w: function(event, dx, dy) {
                var o = this.options, cs = this.originalSize, sp = this.originalPosition;
                return {left: sp.left + dx, width: cs.width - dx};
            },
            n: function(event, dx, dy) {
                var o = this.options, cs = this.originalSize, sp = this.originalPosition;
                return {top: sp.top + dy, height: cs.height - dy};
            },
            s: function(event, dx, dy) {
                return {height: this.originalSize.height + dy};
            },
            se: function(event, dx, dy) {
                return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
            },
            sw: function(event, dx, dy) {
                return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
            },
            ne: function(event, dx, dy) {
                return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
            },
            nw: function(event, dx, dy) {
                return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
            }
        },
        _propagate: function(n, event) {
            $.ui.plugin.call(this, n, [event, this.ui()]);
            if (n != "resize")
                this.element.triggerHandler(["resize", n].join(""), [event, this.ui()], this.options[n]);
        },
        plugins: {},
        ui: function() {
            return {
                originalElement: this.originalElement,
                element: this.element,
                helper: this.helper,
                position: this.position,
                size: this.size,
                options: this.options,
                originalSize: this.originalSize,
                originalPosition: this.originalPosition
            };
        }

    }));

    $.extend($.ui.resizable, {
        version: "1.6",
        defaults: {
            alsoResize: false,
            animate: false,
            animateDuration: "slow",
            animateEasing: "swing",
            aspectRatio: false,
            autoHide: false,
            cancel: ":input",
            containment: false,
            disableSelection: true,
            distance: 1,
            delay: 0,
            ghost: false,
            grid: false,
            knobHandles: false,
            maxHeight: null,
            maxWidth: null,
            minHeight: 10,
            minWidth: 10,
            preserveCursor: true,
            preventDefault: true,
            proportionallyResize: false,
            transparent: false
        }
    });

    /*
     * Resizable Extensions
     */

    $.ui.plugin.add("resizable", "alsoResize", {
        start: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"),
                    _store = function(exp) {
                $(exp).each(function() {
                    $(this).data("resizable-alsoresize", {
                        width: parseInt($(this).width(), 10), height: parseInt($(this).height(), 10),
                        left: parseInt($(this).css('left'), 10), top: parseInt($(this).css('top'), 10)
                    });
                });
            };

            if (typeof(o.alsoResize) == 'object' && !o.alsoResize.parentNode) {
                if (o.alsoResize.length) {
                    o.alsoResize = o.alsoResize[0];
                    _store(o.alsoResize);
                }
                else {
                    $.each(o.alsoResize, function(exp, c) {
                        _store(exp);
                    });
                }
            } else {
                _store(o.alsoResize);
            }
        },
        resize: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"), os = self.originalSize, op = self.originalPosition;

            var delta = {
                height: (self.size.height - os.height) || 0, width: (self.size.width - os.width) || 0,
                top: (self.position.top - op.top) || 0, left: (self.position.left - op.left) || 0
            },
            _alsoResize = function(exp, c) {
                $(exp).each(function() {
                    var start = $(this).data("resizable-alsoresize"), style = {}, css = c && c.length ? c : ['width', 'height', 'top', 'left'];

                    $.each(css || ['width', 'height', 'top', 'left'], function(i, prop) {
                        var sum = (start[prop] || 0) + (delta[prop] || 0);
                        if (sum && sum >= 0)
                            style[prop] = sum || null;
                    });
                    $(this).css(style);
                });
            };

            if (typeof(o.alsoResize) == 'object' && !o.alsoResize.parentNode) {
                $.each(o.alsoResize, function(exp, c) {
                    _alsoResize(exp, c);
                });
            } else {
                _alsoResize(o.alsoResize);
            }
        },
        stop: function(event, ui) {
            $(this).removeData("resizable-alsoresize-start");
        }
    });

    $.ui.plugin.add("resizable", "animate", {
        stop: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable");

            var pr = o.proportionallyResize, ista = pr && (/textarea/i).test(pr.get(0).nodeName),
                    soffseth = ista && $.ui.hasScroll(pr.get(0), 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
                    soffsetw = ista ? 0 : self.sizeDiff.width;

            var style = {width: (self.size.width - soffsetw), height: (self.size.height - soffseth)},
            left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,
                    top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;

            self.element.animate(
                    $.extend(style, top && left ? {top: top, left: left} : {}), {
                duration: o.animateDuration,
                easing: o.animateEasing,
                step: function() {

                    var data = {
                        width: parseInt(self.element.css('width'), 10),
                        height: parseInt(self.element.css('height'), 10),
                        top: parseInt(self.element.css('top'), 10),
                        left: parseInt(self.element.css('left'), 10)
                    };

                    if (pr)
                        pr.css({width: data.width, height: data.height});

                    // propagating resize, and updating values for each animation step
                    self._updateCache(data);
                    self._propagate("animate", event);

                }
            }
            );
        }

    });

    $.ui.plugin.add("resizable", "containment", {
        start: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"), el = self.element;
            var oc = o.containment, ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;
            if (!ce)
                return;

            self.containerElement = $(ce);

            if (/document/.test(oc) || oc == document) {
                self.containerOffset = {left: 0, top: 0};
                self.containerPosition = {left: 0, top: 0};

                self.parentData = {
                    element: $(document), left: 0, top: 0,
                    width: $(document).width(), height: $(document).height() || document.body.parentNode.scrollHeight
                };
            }

            // i'm a node, so compute top, left, right, bottom
            else {
                var element = $(ce), p = [];
                $(["Top", "Right", "Left", "Bottom"]).each(function(i, name) {
                    p[i] = num(element.css("padding" + name));
                });

                self.containerOffset = element.offset();
                self.containerPosition = element.position();
                self.containerSize = {height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1])};

                var co = self.containerOffset, ch = self.containerSize.height, cw = self.containerSize.width,
                        width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw), height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);

                self.parentData = {
                    element: ce, left: co.left, top: co.top, width: width, height: height
                };
            }
        },
        resize: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"),
                    ps = self.containerSize, co = self.containerOffset, cs = self.size, cp = self.position,
                    pRatio = o._aspectRatio || event.shiftKey, cop = {top: 0, left: 0}, ce = self.containerElement;

            if (ce[0] != document && (/static/).test(ce.css('position')))
                cop = co;

            if (cp.left < (o.helper ? co.left : 0)) {
                self.size.width = self.size.width + (o.helper ? (self.position.left - co.left) : (self.position.left - cop.left));
                if (pRatio)
                    self.size.height = self.size.width / o.aspectRatio;
                self.position.left = o.helper ? co.left : 0;
            }

            if (cp.top < (o.helper ? co.top : 0)) {
                self.size.height = self.size.height + (o.helper ? (self.position.top - co.top) : self.position.top);
                if (pRatio)
                    self.size.width = self.size.height * o.aspectRatio;
                self.position.top = o.helper ? co.top : 0;
            }

            self.offset.left = self.parentData.left + self.position.left;
            self.offset.top = self.parentData.top + self.position.top;

            var woset = Math.abs((o.helper ? self.offset.left - cop.left : (self.offset.left - cop.left)) + self.sizeDiff.width),
                    hoset = Math.abs((o.helper ? self.offset.top - cop.top : (self.offset.top - co.top)) + self.sizeDiff.height);

            var isParent = self.containerElement.get(0) == self.element.parent().get(0),
                    isOffsetRelative = /relative|absolute/.test(self.containerElement.css('position'));

            if (isParent && isOffsetRelative)
                woset -= self.parentData.left;

            if (woset + self.size.width >= self.parentData.width) {
                self.size.width = self.parentData.width - woset;
                if (pRatio)
                    self.size.height = self.size.width / o.aspectRatio;
            }

            if (hoset + self.size.height >= self.parentData.height) {
                self.size.height = self.parentData.height - hoset;
                if (pRatio)
                    self.size.width = self.size.height * o.aspectRatio;
            }
        },
        stop: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"), cp = self.position,
                    co = self.containerOffset, cop = self.containerPosition, ce = self.containerElement;

            var helper = $(self.helper), ho = helper.offset(), w = helper.outerWidth() - self.sizeDiff.width, h = helper.outerHeight() - self.sizeDiff.height;

            if (o.helper && !o.animate && (/relative/).test(ce.css('position')))
                $(this).css({left: ho.left - cop.left - co.left, width: w, height: h});

            if (o.helper && !o.animate && (/static/).test(ce.css('position')))
                $(this).css({left: ho.left - cop.left - co.left, width: w, height: h});

        }
    });

    $.ui.plugin.add("resizable", "ghost", {
        start: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"), pr = o.proportionallyResize, cs = self.size;

            if (!pr)
                self.ghost = self.element.clone();
            else
                self.ghost = pr.clone();

            self.ghost.css(
                    {opacity: .25, display: 'block', position: 'relative', height: cs.height, width: cs.width, margin: 0, left: 0, top: 0}
            )
                    .addClass('ui-resizable-ghost').addClass(typeof o.ghost == 'string' ? o.ghost : '');

            self.ghost.appendTo(self.helper);

        },
        resize: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"), pr = o.proportionallyResize;

            if (self.ghost)
                self.ghost.css({position: 'relative', height: self.size.height, width: self.size.width});

        },
        stop: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"), pr = o.proportionallyResize;
            if (self.ghost && self.helper)
                self.helper.get(0).removeChild(self.ghost.get(0));
        }

    });

    $.ui.plugin.add("resizable", "grid", {
        resize: function(event, ui) {
            var o = ui.options, self = $(this).data("resizable"), cs = self.size, os = self.originalSize, op = self.originalPosition, a = self.axis, ratio = o._aspectRatio || event.shiftKey;
            o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
            var ox = Math.round((cs.width - os.width) / (o.grid[0] || 1)) * (o.grid[0] || 1), oy = Math.round((cs.height - os.height) / (o.grid[1] || 1)) * (o.grid[1] || 1);

            if (/^(se|s|e)$/.test(a)) {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
            }
            else if (/^(ne)$/.test(a)) {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
                self.position.top = op.top - oy;
            }
            else if (/^(sw)$/.test(a)) {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
                self.position.left = op.left - ox;
            }
            else {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
                self.position.top = op.top - oy;
                self.position.left = op.left - ox;
            }
        }

    });

    var num = function(v) {
        return parseInt(v, 10) || 0;
    };

})(jQuery);
